Author
Topic: Need a little help with 300mm 2.8 IS that I just bought used... (Read 4429 times)

I just received the lens and started playing around with it and immediately noticed that when the IS is turned on, it makes a clearly audible "whirring" sound while focusing and for 2-3 seconds after focus is locked. When IS is off, no "whirring" sound.

I have several lenses with IS and I've never heard anything like this. Is 2-3 seconds of "whirring" normal for the 300mm 2.8 IS?

Would appreciate any feedback since I'm in the return window....thanks.

Noise is all normal. Only worry if it ever "stops" making these noise with IS on. It is the stabilizing gyros, and the corrective lens elements moving to correct lens movement. Does this on all super-telephoto lenses.

None of my IS lenses including my 300/2.8L IS II make any audible noise with the IS on. Of course, it would't surprise me if some people on this board are listening to their IS lenses with a stethoscope.

Logged

Lots of Canon stuff.

PackLight

None of my IS lenses including my 300/2.8L IS II make any audible noise with the IS on. Of course, it would't surprise me if some people on this board are listening to their IS lenses with a stethoscope.

All the more reason for us to upgrade our Version I's, we can get rid of the stethoscope and the whirly noises.

None of my IS lenses including my 300/2.8L IS II make any audible noise with the IS on. Of course, it would't surprise me if some people on this board are listening to their IS lenses with a stethoscope.

All the more reason for us to upgrade our Version I's, we can get rid of the stethoscope and the whirly noises.

No no no. You got his post all wrong. What he means is that he "wins."